want to change suzuki mehran 2003 color...guide me plz

anybody cn tell me is it ok to change the color of my car as am fad up with the white color thats the orignal...
will it make any diffrence on the price of the car when i want to sell it in future..???
how much deffrence will it make?? cn u guide me ??
and what color goes best on white..?? i want to gve it a new look...
will it be done in 5000?? as my car dnt need any denting .. but has some scratches on orignal white color....
plz plz guide me... am waiting thaksssss

thanx everyone...but...

.. they charging me fr the same white paint .. 15000 ..and for the interior they are charging 8000.... interior includes plastic seat covers ...,carpeting and the roof...
are they over chargin???kindly reply
thnx everyone..